Ddx Flashcards

1
Q

Mucopolysaccharidosis a group of inherited dx in which the body is unable to break down mucopolyssachrides

A
Symptoms: - macrocephaly
- umbilical hernia or ingunal hernia
- hydrocephalus 
- heart valve abnormalities 
- distinctive facies
- macroglossia
- hepatospleenomegaly
- carpal tunnel syndrome
- spine stenosis
-
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2
Q

If baby has central cyanosis

A

Ddx: - congenital heart disease

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3
Q

Bluish colouration of skin

A
  • respiratory problems
  • cardiac problems
  • methaemoglobinemia
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4
Q

Large fontanelle, seperation sutures, delayed closure of fontanelles

A
  • raised ICP
  • hypothyroidism
  • rickets
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5
Q

Macrocephaly

A
  • subdural haematoma
  • hydrocephalus
  • ingerited syndromes such as Beckweith, muco…
  • familial macrocephaly
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6
Q

Low set ears

A
  • associated with renal tract anomalies
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7
Q

Pierre robbin syndrome

A
  • micrognathia or underdeveloped jaw
  • backward displacement of tongue
  • air obstruction
  • cleft palate
  • repeated ear infections
  • batal teeth
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8
Q

Scaphoid abdomen

A
  • diaphragmatic hernia

- duodenal atresia

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9
Q

Distended abdomen

A
- intestinal obstruction
Peristalsis From left to right is high IO
Peristalsis From right to left is low IO
- perforation
- free gas in the liver
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10
Q

Pneumatosis intestinalis

A
Pneumatosis intestinalis (PI) refers to the presence of gas within the wall of the small or large intestine. 
Intramural gas can also affect the stomach, but this condition is referred to as gastric pneumatosis
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11
Q

Absence of Moro reflex

A
  • suggests cerebral damage
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12
Q

Cranial nerve one

A

Smell-ability of each nostril to different smells

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13
Q

Cranial nerve 2

A

Visual acuity, visual fields, pupils (size, shape, reaction to light and consensual); Fundoscopy: papilloedema, optic atrophy, cataract

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14
Q

Cranial nerve three

A

Occlumotor nerve palsy

Palsy: Unilateral ptosis, fixed dilated pupil, eye down and out

third nerve palsy may be present at birth (congenital), and the exact cause may not be clear. Acquired third nerve palsy can be associated with head injury, infection, vaccination, migraine, brain tumor, aneurysm, diabetes, or high blood pressure.

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15
Q

Cranial nerve four

A
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16
Q

Cranial nerve four

A

Trochlear nerve palsy: Diplopia (when both eyes are open) on looking down and away from the affected side
The fourth cranial nerve is in charge of the superior oblique muscle which turns the eye ineard and downward

17
Q

Diploplia

A

Ddx:

  • cranial nerve four
  • myasthenia gravis
  • graves disease
  • Wernicke syndrome
18
Q

Trigerminal (5) palsy

A

Palsy: Motor-jaw deviates to the side of lesion
Sensory: Corneal reflex lost

19
Q

Abducens (6) nerve palsy

A

Convergent squint

An Esotropia, or convergent squint, is when an eye turns inwards. Esotropia (convergent squint) You can have squints that are there all the time (constant) or a squint that appears occasionally and the eyes are straight the rest of the time (intermittent).

20
Q

Facial nerve lesions/ cranial nerve 7 palsy/ bell’s phenomenon

A

Weakness Only the lower two-thirds is affected in UMN lesions, but all of one side of the face in LMN lesions. Ask the child to screw-up eyes, raise eyebrows, blow out cheeks, and show teeth

21
Q

Vestibulocochlear and glossopharyngeal

A

Hearing, balance and posture

22
Q

Vagus (10) cranial nerve

A

Gag reflex: Look at palatal movement

23
Q

Spinal accessory (11) cranial nerve

A

Trapezii: Shrug your shoulders

24
Q

Hypoglossal (12) cranial nerve

A

Tongue movement: Deviates to the side of lesion

25
Q

Cerebrllum function

A

DANISH
Jerk nystagmus (worse on gaze away from midline)
• Truncal ataxia (if worse when eyes closed then lesion is of dorsal columns; not cerebellum)
• Intention tremor: Ask the child to pick up a small object and watch for tremor
• Past pointing: Ask the child to cover one eye with one hand and with the index finger of the other hand ask him to touch his nose and then touch your finger
• Gait: Ask the child to walk normally and then walk heel—toe look for ataxic gait.
Slurred speech
Dysdochokinesia

26
Q

Reflex

A

Arms: Biceps (C5, C6)
Triceps (C7,C8)

Lower limps:
Knee: (L3,L4)
Ankle (S1,S2)

27
Q

Delay in disappearnace of primitive reflexes suggest

A

Cerebral damage